人口信息空间可视化系统设计研究

人口问题始终是我国乃至世界关注的重大社会发展问题,因此将人口信息进行空间化总结和表达,并对这些信息进行深层次开发和应用就显得尤为重要。本文探讨了人口信息空间可视化的必要性和重要性及人口信息空间可视化系统设计中的关键科学与技术问题,提出了人口信息空间可视化系统设计框架、系统功能模块和数据库结构。结合第五次人口普查信息设计和制作了《中华人民共和国人口电子地图集》,图集提供1 0个图组共计近2 0 0幅地图和近1 0 0 0个分省、分地区和分县人口指标以及强大的系统功能,形成交互的人口空间认知的可视化环境,形象地表达了人口的地区差异、分布特征;揭示了人口要素间的相互关系以及与区域各种要素制约关系,提高对我国人口问题的空间认知水平。

The design and research on geo-visualization system for population

Population research is a hot area concerned by domestic and overseas,especially its researches on spatial visualization and geo-visualization system design,which can provide a sound base for understanding and analysis of the regional difference in population distribution and its spatial rules.This paper discusses the key theory and technology for design and construction of geo-visualization system for population in China,including its main frame,database structure,system components,functionality,and analysis models.Based on such designs, China's E-atlas for population was designed and developed by the integration of the national fifth census data with 1∶400 million scaled spatial data.The ten map categories with 196 maps as well as a highly structured population database with province,prefecture and county,together with the powerful functionality in display,query,statistics,mapping,and analysis,are integrated,providing spatial visual environment to indicate the characteristics of population distribution and the interrelations of the population elements.Moreover,such a system,provides the basic information and modern tool for the decision maker and researcher for handling,analysis of population information and making the long-term control policy.